Hydrate the superhero way with this most excellent AriZona Marvel Super LXR Hero Hydration A?a? and Blueberry Captain America drink. "What's A?a??" we hear you ask. Nobody knows. It's one of those things that we're pretty sure is good for you. There's plenty of other good stuff jammed into this drink as well; electrolytes, 13 different vitamins and minerals, green tea extract, L-Carnitine, L-Glutamine, Choline and antioxidants. It's basically the super soldier serum that turned Steve Rodgers into Captain America except it comes in a handy can rather than a syringe with really really long needle.